Coiled sleeve forming die with positioning grooves on outer diameter and its application method
A technology of positioning slots and forming molds, which is applied to other household appliances, applications, household appliances, etc., can solve the problems of high labor intensity, difficulty in quality assurance, and low efficiency of workers, and achieve good automation continuity, simple structure, and production efficiency. high effect
Active Publication Date: 2018-09-14
ZHEJIANG SF OILLESS BEARING
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Problems solved by technology
This kind of processing method is inefficient, the labor intensity of workers is high, and the quality is not easy to guarantee
Method used
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Embodiment Construction
[0024] The present invention will be further described below in conjunction with the accompanying drawings.
[0025] image 3 , Figure 4 It is a schematic diagram of the structure of the rolling sleeve forming die with positioning grooves on the outer diameter. Find out from the figure, it comprises organic frame 1 and shaping mold base 2, and shaping mold 3 is installed in shaping mold base 2 as Figure 5 , Image 6 , Figure 7 As shown, a mandrel 5 that can move forward and backward is installed in the shaping hole 4 passing through the frame 1 and the shaping die 3. The mandrel 5 is a stepped shaft, and the diameter of the front section of the mandrel 5 is the diameter of the correction section and the processed shaft. set figure 1 The inner hole d is the same, and the diameter of the rear shoulder 6 is the same as or slightly smaller than the outer diameter D of the processed sleeve. The mandrel 5 left and right sides between frame 1 and shaping die 3 are provided w...
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The invention discloses a forming die for a wrapped bearing bush with positioning grooves in the outer diameter and a use method of the forming die. The forming die comprises a rack and a sizing die holder; a sizing die is mounted in the sizing die holder; a mandrel capable of moving forwards and backwards is mounted in a sizing hole penetrating through the rack and the sizing die and is a stepped shaft; the diameter of the front section of the mandrel is equal to that of an inner hole of the machined bearing bush; the diameter of a shoulder of the back section of the mandrel is equal to or slightly smaller than the outer diameter of the machined bearing bush; a left fixed cutter is arranged on the left side of the mandrel between the rack and the sizing die; a right fixed cutter is arranged on the right side of the mandrel between the rack and the sizing die; the distance between a cutting edge of the left fixed cutter and a cutting edge of the right fixed cutter is the unfolding length of the machined bearing bush; the distance between the rack and the sizing die is slightly larger than the width of the machined bearing bush; an upper inverted-u-shaped forming die capable of moving up and down is arranged above the mandrel between the rack and the sizing die; a lower u-shaped forming die capable of moving up and down is arranged below the mandrel between the rack and the sizing die; a left moving cutter corresponding to the left fixed cutter is arranged on the left end surface of the upper forming die; a right moving cutter corresponding to the right fixed cutter is arranged on the right end surface of the upper forming die; a groove broaching cutter is formed in the sizing die on each of the left side and the right side of the sizing hole; and a chip removal hole is formed in the sizing die in front of the groove broaching cutters.
Description
technical field [0001] The patent of the present invention relates to a molding die for a sliding bearing and a molding method thereof, in particular to a rolling shaft sleeve molding die with positioning grooves on the outer diameter and a usage method thereof. Background technique [0002] Now the output of sliding bearings on the market is increasing year by year. Sliding bearings are divided into shaft sleeves, flanged shaft sleeves, gaskets, sliders, etc. according to their structural forms. Among them, the shaft sleeve has the highest proportion, accounting for more than 70% of the total sliding bearings. The output of shaft sleeves is very high, gradually moving towards mass production, automatic production, and numerical control production. With the widespread application of composite materials, sliding bearings have changed from the original integral type to jointed sleeves made of composite material plates by rolling, and the plates have also developed from the or...
Claims
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IPC IPC(8): B29C53/42B29C53/80B29L31/04
CPCB29C53/42B29C53/8008B29L2031/04
Inventor 陈应东崔泉源
Owner ZHEJIANG SF OILLESS BEARING